TensorMechanicsHardeningPowerRule Class Reference

Power-Rule Hardening defined by: assuming p = internal_parameter, then value = value_0 * (p / epsilon0 + 1)^{exponent}) Notice that if epsilon0 = 0, it will return not a number. More...

#include <TensorMechanicsHardeningPowerRule.h>

Inheritance diagram for TensorMechanicsHardeningPowerRule:

Public Member Functions
	TensorMechanicsHardeningPowerRule (const InputParameters &parameters)
virtual Real	value (Real intnl) const override
virtual Real	derivative (Real intnl) const override
virtual std::string	modelName () const override
void	initialize ()
void	execute ()
void	finalize ()

Static Public Member Functions
static InputParameters	validParams ()

Private Attributes
const Real	_value_0
	The value = value_0 * (p / epsilon0 + 1)^{exponent}) More...
const Real	_epsilon0
	The value = value_0 * (p / epsilon0 + 1)^{exponent}) More...
const Real	_exponent
	The value = value_0 * (p / epsilon0 + 1)^{exponent}) More...

Detailed Description

Power-Rule Hardening defined by: assuming p = internal_parameter, then value = value_0 * (p / epsilon0 + 1)^{exponent}) Notice that if epsilon0 = 0, it will return not a number.

Definition at line 24 of file TensorMechanicsHardeningPowerRule.h.

Constructor & Destructor Documentation

TensorMechanicsHardeningPowerRule()

TensorMechanicsHardeningPowerRule::TensorMechanicsHardeningPowerRule

(

const InputParameters &

parameters

)

Definition at line 30 of file TensorMechanicsHardeningPowerRule.C.

  : TensorMechanicsHardeningModel(parameters),
    _value_0(getParam<Real>("value_0")),
    _epsilon0(getParam<Real>("epsilon0")),
    _exponent(getParam<Real>("exponent"))
{
}

Member Function Documentation

derivative()

Real TensorMechanicsHardeningPowerRule::derivative ( Real  intnl ) const

overridevirtual

Reimplemented from TensorMechanicsHardeningModel.

Definition at line 46 of file TensorMechanicsHardeningPowerRule.C.

{
  return _value_0 * _exponent / _epsilon0 * std::pow(intnl / _epsilon0 + 1, _exponent - 1);
}

execute()

void TensorMechanicsHardeningModel::execute ( )

inherited

Definition at line 36 of file TensorMechanicsHardeningModel.C.

{
}

finalize()

void TensorMechanicsHardeningModel::finalize ( )

inherited

Definition at line 41 of file TensorMechanicsHardeningModel.C.

{
}

initialize()

void TensorMechanicsHardeningModel::initialize ( )

inherited

Definition at line 31 of file TensorMechanicsHardeningModel.C.

{
}

modelName()

std::string TensorMechanicsHardeningPowerRule::modelName ( ) const

overridevirtual

Implements TensorMechanicsHardeningModel.

Definition at line 52 of file TensorMechanicsHardeningPowerRule.C.

{
  return "PowerRule";
}

validParams()

InputParameters TensorMechanicsHardeningPowerRule::validParams ( )

static

Definition at line 17 of file TensorMechanicsHardeningPowerRule.C.

{
  InputParameters params = TensorMechanicsHardeningModel::validParams();
  params.addRequiredParam<Real>("value_0", "The yield strength when internal variable = 0");
  params.addParam<Real>("epsilon0", 1.0, "The reference strain");
  params.addParam<Real>(
      "exponent",
      0.0,
      "Let p = internal_parameter.  Then value = value_0 * (p / epsilon0 + 1)^{exponent})");
  params.addClassDescription("Hardening defined by power rule");
  return params;
}

value()

Real TensorMechanicsHardeningPowerRule::value ( Real  intnl ) const

overridevirtual

Reimplemented from TensorMechanicsHardeningModel.

Definition at line 40 of file TensorMechanicsHardeningPowerRule.C.

{
  return _value_0 * std::pow(intnl / _epsilon0 + 1, _exponent);
}

Member Data Documentation

_epsilon0

const Real TensorMechanicsHardeningPowerRule::_epsilon0

private

The value = value_0 * (p / epsilon0 + 1)^{exponent})

Definition at line 42 of file TensorMechanicsHardeningPowerRule.h.

Referenced by derivative(), and value().

_exponent

const Real TensorMechanicsHardeningPowerRule::_exponent

private

The value = value_0 * (p / epsilon0 + 1)^{exponent})

Definition at line 45 of file TensorMechanicsHardeningPowerRule.h.

Referenced by derivative(), and value().

_value_0

const Real TensorMechanicsHardeningPowerRule::_value_0

private

The value = value_0 * (p / epsilon0 + 1)^{exponent})

Definition at line 39 of file TensorMechanicsHardeningPowerRule.h.

Referenced by derivative(), and value().

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The documentation for this class was generated from the following files:

• tensor_mechanics/include/userobjects/TensorMechanicsHardeningPowerRule.h
• tensor_mechanics/src/userobjects/TensorMechanicsHardeningPowerRule.C